220720720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:393

約数の個数: 160

約数和(自身を含む): 604961280

約数和(自身を除く): 384240560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 43, 44, 55, 76, 80, 86, 88, 95, 110, 152, 172, 176, 190, 209, 215, 220, 304, 307, 344, 380, 418, 430, 440, 473, 614, 688, 760, 817, 836, 860, 880, 946, 1045, 1228, 1520, 1535, 1634, 1672, 1720, 1892, 2090, 2365, 2456, 3070, 3268, 3344, 3377, 3440, 3784, 4085, 4180, 4730, 4912, 5833, 6140, 6536, 6754, 7568, 8170, 8360, 8987, 9460, 11666, 12280, 13072, 13201, 13508, 16340, 16720, 16885, 17974, 18920, 23332, 24560, 26402, 27016, 29165, 32680, 33770, 35948, 37840, 44935, 46664, 52804, 54032, 58330, 64163, 65360, 66005, 67540, 71896, 89870, 93328, 105608, 116660, 128326, 132010, 135080, 143792, 145211, 179740, 211216, 233320, 250819, 256652, 264020, 270160, 290422, 320815, 359480, 466640, 501638, 513304, 528040, 580844, 641630, 718960, 726055, 1003276, 1026608, 1056080, 1161688, 1254095, 1283260, 1452110, 2006552, 2323376, 2508190, 2566520, 2759009, 2904220, 4013104, 5016380, 5133040, 5518018, 5808440, 10032760, 11036036, 11616880, 13795045, 20065520, 22072072, 27590090, 44144144, 55180180, 110360360, 220720720]

約数ペア:

[(1, 220720720), (2, 110360360), (4, 55180180), (5, 44144144), (8, 27590090), (10, 22072072), (11, 20065520), (16, 13795045), (19, 11616880), (20, 11036036), (22, 10032760), (38, 5808440), (40, 5518018), (43, 5133040), (44, 5016380), (55, 4013104), (76, 2904220), (80, 2759009), (86, 2566520), (88, 2508190), (95, 2323376), (110, 2006552), (152, 1452110), (172, 1283260), (176, 1254095), (190, 1161688), (209, 1056080), (215, 1026608), (220, 1003276), (304, 726055), (307, 718960), (344, 641630), (380, 580844), (418, 528040), (430, 513304), (440, 501638), (473, 466640), (614, 359480), (688, 320815), (760, 290422), (817, 270160), (836, 264020), (860, 256652), (880, 250819), (946, 233320), (1045, 211216), (1228, 179740), (1520, 145211), (1535, 143792), (1634, 135080), (1672, 132010), (1720, 128326), (1892, 116660), (2090, 105608), (2365, 93328), (2456, 89870), (3070, 71896), (3268, 67540), (3344, 66005), (3377, 65360), (3440, 64163), (3784, 58330), (4085, 54032), (4180, 52804), (4730, 46664), (4912, 44935), (5833, 37840), (6140, 35948), (6536, 33770), (6754, 32680), (7568, 29165), (8170, 27016), (8360, 26402), (8987, 24560), (9460, 23332), (11666, 18920), (12280, 17974), (13072, 16885), (13201, 16720), (13508, 16340)]